IoT MOOC Discussion

[Copy the link]
Released on : 2018-1-3 11:06:43   Latest reply:2018-01-04 09:41:40
291 2
Module 1: Development and Definition of the Internet of Things (IoT)
Question 1: When was the Internet of Things (IoT) put forward? What is it about in the plainest words?


Tips on Answers:
The concept of Internet of Things came up in 1999. It was proposed first by MIT of the United States of America. In its early stage, the Internet of Things was based on RFID technologies and devices to interact with the Internet in accordance with predefined communication protocols. The main purpose is to realize information interconnection, exchange, and share among things.
Internet of Things is an internet that focuses on connections among things. Its connotations are twofold. First, the core and foundation of the Internet of Things are still the Internet. It is only an extension and expansion of the existing Internet. Second, the users of the Internet are expanded to have things included. Information exchange and communication between things also become a part of the Internet.

Module 2: Communications Technology of the Internet of Things (IoT)
Question 1: We all know that NB-IoT and LoRa are low-power wide-range technologies. What distinctive strong points does LPWA have over existing 2G, 3G, and ZigBee technologies when it comes to the Internet of Things?


Tips on Answers:
In comparison with existing 2G, 3G, and ZigBee, LPWA boasts for a number of advantages. First, lower power consumption. LPWA can drastically reduce power consumption of communicating devices to thus boost device battery life. Second, stronger converge. LPWA provides a better coverage in concealed areas than traditional solutions and the devices under weak coverage can have stable network access and communication. Third, access specification increases so that a single cell can accommodate more devices.

Module 3: Architecture of the Internet of Things (IoT)
Question 1: What are the layers of the architecture of the IoT system, and what functions does each layer provide?


Tips on Answers:
Architecturally, the system of an Internet of Things includes a terminal perception (sensor) layer, a network layer, a platform layer, and an application layer.
The terminal perception layer uses various perception technology to collect and process signals, allow things to "talk and release information". This is the most unique part of the IoT that makes it distinctive from other networks. The devices that generate information in the terminal perception layer includes automatically created RFID labels as well as sensors and positioning systems. Such devices also include man-made smart devices of various kinds.
The network layer takes advantage of existing Internet and communication networks among other network infrastructure to receive and transmit information that comes from the terminal perception layer.
The platform layer uses computer-based solutions to integrate massive information within a network into a large smart network that features interconnection among things. This layer also addresses issues ranging from data storage and retrieving to data usage and abuse prevention.
The application layer provides user with interfaces within an Internet of Things network. This layer analyzes processed senor data to enable specific services of diverse categories. This layer receives information from the network layer and further processes the information to come up with decisions. It sends the decisions through the network layer to control devices and terminals located in the terminal perception layer.

Module 4: Industrial Applications of the Interne of Things (IoT)
Question 1: Please give some specific application examples of Internet of Things. Please provide some details about the applications of Internet of Things in streetlamp management as well.


Tips on Answers:
Take the field of public utility for example. In this industry, the Internet of Things applications include streetlamp management, manhole cover management, parking management, water management, and trash can management. In terms of the e-commerce field, the main services include house appliance management and one-click ordering functions. Also, we already have applications of advanced metering infrastructure (AMI) and smart building in the area of energy conservation. As far as Internet of Vehicles is concerned, smart buses and user-based insurance (UBI) businesses are very good examples.
Talking about streetlamp management, here are a few more details. For the purpose of reducing energy consumption, 400 Watts high-pressure sodium lamps are replaced with LED lamps of 200 or even lower 160 Watts. Lamp preventive inspection is improved too. In areas with costly manual inspections, lamp controllers are used to not just control lamp on/off and but also to adjust the brightness and detect lamp status. When it comes to the communication, several management modes are introduced. One mode is implemented using ZigBee gateways. The mode of equipping a lamp management box with a PLC gateway is also realized. The management based on single-hop LPWA networks is another mode, in which networks accessing the Internet of Things platforms are utilized to perform centralized management of lamp on/offs, brightness, and status monitoring.
  • x
  • convention:

Comment Reply

Go to the specified floor
Suyifly  Admin   Released on 2018-1-4 09:23:26 Helpful(0) Helpful(0)

  • x
  • convention:

Comment Reply

user_45729  Moderator   Released on 2018-1-4 09:41:40 Helpful(0) Helpful(0)

Thanks for sharing
  • x
  • convention:

Comment Reply

Reply
You need to log in to reply to the post Login | Register

If the attachment button is not available, update the Adobe Flash Player to the latest version!
Fast reply Scroll to top